MOTUNATION (formerly UnicorNation) is an independent community for discussing Digital Performer and other MOTU audio software and hardware. It is not affiliated with MOTU.
Forum rules
This forum is for seeking solutions to technical problems involving Digital Performer and/or plug-ins on MacOS, as well as feature requests, criticisms, comparison to other DAWs.
I’d start by rebooting in safe mode and restarting to clear out some caches and also running disk repair. Sounds like a directory corruption. Also, step one: kill all DPs plists (DP not running at the time).